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T56 Front shift conversion Install

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Old 07-27-2011, 08:58 PM   #21
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Originally Posted by marovetsm View Post
Thanks for the compliments!

I still havent driven it too much. I got the 4.88's in and man that made this thing fun to drive! They are perfect, glad I didnt go with 4.56's. Now first is about the same as it was with the NV and 3.73's; and the close ratios make acceleration pretty nuts. I came down an on ramp and punched it and before I knew it I was up to 100, this is a whole new truck! Hitting third at 5500rpm feels awesome. Plus I can throw it in 6th and cruise at about 1800rpm at 70. I am very pleased with the results.

Not sure about gas mileage. Since its not my daily driver I dont even really keep track. I know its not good because I usually have 'fun' when I drive, but with the double overdrive Im sure it would be an improvement if you drove it nice.
soooooo jealous

i got 4.88s and a true trac waiting to be installed,

ive been driving the t56 on these 3.73s for like a year and its been horrible
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Old 07-27-2011, 09:16 PM   #22
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soooooo jealous

i got 4.88s and a true trac waiting to be installed,

ive been driving the t56 on these 3.73s for like a year and its been horrible
What clutch are you running? Do you do much city driving? When you put the 4.88's in you will wish you did them right away!
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Old 07-28-2011, 09:19 AM   #23
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i have the ls7 clutch, i can still chirp second and it slips really nice.

ive done some city driving, it isnt bad
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Old 07-30-2011, 06:45 PM   #24
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Clutch, trans, and new gears have been working great since the swap so I decided to have a little fun...

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Old 07-30-2011, 09:36 PM   #25
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One last question, does your cruise control work in 6th gear?
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Old 07-30-2011, 09:40 PM   #26
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I haven't tested it out yet, I will tomorrow and let you know.
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Old 02-29-2012, 01:54 PM   #27
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Just got done doing a front shift conversion and thought id post a problem i ran into. Before you install the new iron block supplied by Kiesler, grind the forward edge away a bit more to better match the angle that had to be cut into the shift shaft. My tranny wouldnt shift all the way into 1st, 3rd or 5th because the shifter stub interfered with the iron block and i had to die grind it back a bit on the forward top edge right above the shift shaft hole by the roll pin. Pissed me off after it was all together and i had to grind it and keep the shavings out of it.

Also the original block can be removed without cutting it to bits if you mark the shaft and shift it into a gear. Plenty of room to cut the shaft and pull the block rearward off the shaft intact if you play it right. There is absolutely no need to disassemble the tranny when its that simple!
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Old 02-29-2012, 02:36 PM   #28
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I had the same problem. I couldnt get it to go into 1st, 3rd, 5th, and half the time reverse. I filed off some of the peg on the keisler unit and now it shifts like a charm. I too the offset lever out with the trans still in the truck. It took some maneuvering and it wasnt easy but it I did it. Made a custom roll pin puller that was a life saver.
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Old 03-10-2012, 05:29 PM   #29
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Came across these pics. Heres what I did.

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Old 03-13-2012, 10:21 PM   #30
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well thanks! glad I know to do this before its in the truck!
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assembly, center, conversion, detent, front, install, kit, number, part, pictures, pin, rail, relocation, shift, shifter, t56

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